72424159 has 2 divisors, whose sum is σ = 72424160. Its totient is φ = 72424158.

The previous prime is 72424139. The next prime is 72424193. The reversal of 72424159 is 95142427.

It is an a-pointer prime, because the next prime (72424193) can be obtained adding 72424159 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72424159 - 2⁹ = 72423647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72424109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36212079 + 36212080.

It is an arithmetic number, because the mean of its divisors is an integer number (36212080).

Almost surely, 2^72424159 is an apocalyptic number.

72424159 is a deficient number, since it is larger than the sum of its proper divisors (1).

72424159 is an equidigital number, since it uses as much as digits as its factorization.

72424159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 72424159 is about 8510.2384807948. The cubic root of 72424159 is about 416.8320973675.

The spelling of 72424159 in words is "seventy-two million, four hundred twenty-four thousand, one hundred fifty-nine".